diff --git a/ng2-components/ng2-activiti-processlist/src/components/activiti-process-instance-tasks.component.ts b/ng2-components/ng2-activiti-processlist/src/components/activiti-process-instance-tasks.component.ts
index 15de210f0c..e7848282c6 100644
--- a/ng2-components/ng2-activiti-processlist/src/components/activiti-process-instance-tasks.component.ts
+++ b/ng2-components/ng2-activiti-processlist/src/components/activiti-process-instance-tasks.component.ts
@@ -144,7 +144,7 @@ export class ActivitiProcessInstanceTasks implements OnInit, OnChanges {
                     ? user.firstName + ' ' : '') +
                 user.lastName;
         }
-        return '';
+        return 'Nobody';
     }
 
     getFormatDate(value, format: string) {
diff --git a/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-details.component.html b/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-details.component.html
index dde8190e57..c59d74e9c8 100644
--- a/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-details.component.html
+++ b/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-details.component.html
@@ -9,7 +9,10 @@
 </div>
 <div *ngIf="taskDetails">
     <h2 class="mdl-card__title-text">{{taskDetails.name}}</h2>
-    <activiti-task-header [taskDetails]="taskDetails" [formName]="taskFormName"></activiti-task-header>
+    <activiti-task-header
+            [taskDetails]="taskDetails"
+            [formName]="taskFormName"
+            (claim)="onClaimTask($event)"></activiti-task-header>
     <div class="mdl-grid">
         <div class="mdl-cell mdl-cell--4-col">
             <activiti-people [people]="taskPeople" [readOnly]="readOnlyForm"
@@ -24,19 +27,24 @@
                                 #activitichecklist></activiti-checklist>
         </div>
     </div>
-    <activiti-form *ngIf="hasFormKey()" [taskId]="taskDetails.id"
-                   [showTitle]="showFormTitle"
-                   [showRefreshButton]="showFormRefreshButton"
-                   [showCompleteButton]="showFormCompleteButton"
-                   [showSaveButton]="showFormSaveButton"
-                   [readOnly]="readOnlyForm"
-                   (formSaved)='onFormSaved($event)'
-                   (formCompleted)='onFormCompleted($event)'
-                   (formLoaded)='onFormLoaded($event)'
-                   (onError)='onFormError($event)'
-                   (executeOutcome)='onFormExecuteOutcome($event)'
-                   #activitiForm>
-    </activiti-form>
+    <div *ngIf="isAssignedToMe()">
+        <activiti-form *ngIf="hasFormKey()" [taskId]="taskDetails.id"
+                       [showTitle]="showFormTitle"
+                       [showRefreshButton]="showFormRefreshButton"
+                       [showCompleteButton]="showFormCompleteButton"
+                       [showSaveButton]="showFormSaveButton"
+                       [readOnly]="readOnlyForm"
+                       (formSaved)='onFormSaved($event)'
+                       (formCompleted)='onFormCompleted($event)'
+                       (formLoaded)='onFormLoaded($event)'
+                       (onError)='onFormError($event)'
+                       (executeOutcome)='onFormExecuteOutcome($event)'
+                       #activitiForm>
+        </activiti-form>
+    </div>
+    <div *ngIf="!isAssignedToMe()">
+        {{ 'TASK_DETAILS.MESSAGES.CLAIM' | translate }}
+    </div>
     <button type="button" class="mdl-button" *ngIf="!hasFormKey() && isTaskActive()" (click)="onComplete()">
         {{ 'TASK_DETAILS.BUTTON.COMPLETE' | translate }}
     </button>
diff --git a/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-details.component.ts b/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-details.component.ts
index 9c1a85a846..6a5079bd9c 100644
--- a/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-details.component.ts
+++ b/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-details.component.ts
@@ -178,6 +178,10 @@ export class ActivitiTaskDetails implements OnInit, OnChanges {
         }
     }
 
+    isAssignedToMe(): boolean {
+        return this.taskDetails.assignee ? true : false;
+    }
+
     /**
      * Retrieve the next open task
      * @param processInstanceId
@@ -243,4 +247,8 @@ export class ActivitiTaskDetails implements OnInit, OnChanges {
     closeErrorDialog(): void {
         this.errorDialog.nativeElement.close();
     }
+
+    onClaimTask(taskId: string) {
+        this.loadDetails(taskId);
+    }
 }
diff --git a/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-header.component.html b/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-header.component.html
index 9cb0f62abd..e0ee454c12 100644
--- a/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-header.component.html
+++ b/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-header.component.html
@@ -15,5 +15,10 @@
             <span class="activiti-task-header__value" *ngIf="formName">{{ formName }}</span>
             <span class="activiti-task-header__value" *ngIf="!formName">{{ 'TASK_DETAILS.FORM.NONE' | translate }}</span>
         </div>
+
+        <button *ngIf="!isAssignedToMe()" data-automation-id="header-claim-button" type="button" id="claim-task"
+                (click)="claimTask(taskDetails.id)" class="mdl-button">{{ 'TASK_DETAILS.BUTTON.CLAIM' | translate }}
+        </button>
+
     </div>
 </div>
diff --git a/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-header.component.spec.ts b/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-header.component.spec.ts
index ebb1263b7e..2ad4311c22 100644
--- a/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-header.component.spec.ts
+++ b/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-header.component.spec.ts
@@ -24,9 +24,11 @@ import { ActivitiTaskHeader } from './activiti-task-header.component';
 import { TranslationMock } from './../assets/translation.service.mock';
 import { taskDetailsMock } from './../assets/task-details.mock';
 import { TaskDetailsModel } from '../models/task-details.model';
+import { ActivitiTaskListService } from './../services/activiti-tasklist.service';
 
 describe('ActivitiTaskHeader', () => {
 
+    let service: ActivitiTaskListService;
     let componentHandler: any;
     let component: ActivitiTaskHeader;
     let fixture: ComponentFixture<ActivitiTaskHeader>;
@@ -40,7 +42,8 @@ describe('ActivitiTaskHeader', () => {
                 ActivitiTaskHeader
             ],
             providers: [
-                { provide: AlfrescoTranslationService, useClass: TranslationMock }
+                { provide: AlfrescoTranslationService, useClass: TranslationMock },
+                ActivitiTaskListService
             ]
         }).compileComponents();
     }));
@@ -49,6 +52,7 @@ describe('ActivitiTaskHeader', () => {
 
         fixture = TestBed.createComponent(ActivitiTaskHeader);
         component = fixture.componentInstance;
+        service = fixture.debugElement.injector.get(ActivitiTaskListService);
 
         component.taskDetails = new TaskDetailsModel(taskDetailsMock);
 
@@ -78,6 +82,13 @@ describe('ActivitiTaskHeader', () => {
         expect(valueEl.nativeElement.innerText).toBe('TASK_DETAILS.ASSIGNEE.NONE');
     });
 
+    it('should display the claim button if no assignee', () => {
+        component.taskDetails.assignee = null;
+        fixture.detectChanges();
+        let valueEl = fixture.debugElement.query(By.css('[data-automation-id="header-claim-button"]'));
+        expect(valueEl.nativeElement.innerText).toBe('TASK_DETAILS.BUTTON.CLAIM');
+    });
+
     it('should display due date', () => {
         component.taskDetails.dueDate = '2016-11-03T15:25:42.749+0000';
         fixture.detectChanges();
diff --git a/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-header.component.ts b/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-header.component.ts
index 4856dba405..dc1a38d3cc 100644
--- a/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-header.component.ts
+++ b/ng2-components/ng2-activiti-tasklist/src/components/activiti-task-header.component.ts
@@ -15,9 +15,10 @@
  * limitations under the License.
  */
 
-import { Component, Input } from '@angular/core';
+import { Component, Input, Output, EventEmitter } from '@angular/core';
 import { AlfrescoTranslationService } from 'ng2-alfresco-core';
 import { TaskDetailsModel } from '../models/task-details.model';
+import { ActivitiTaskListService } from './../services/activiti-tasklist.service';
 
 @Component({
     selector: 'activiti-task-header',
@@ -33,7 +34,11 @@ export class ActivitiTaskHeader {
     @Input()
     taskDetails: TaskDetailsModel;
 
-    constructor(private translate: AlfrescoTranslationService) {
+    @Output()
+    claim: EventEmitter<any> = new EventEmitter<any>();
+
+    constructor(private translate: AlfrescoTranslationService,
+                private activitiTaskService: ActivitiTaskListService) {
         if (translate) {
             translate.addTranslationFolder('ng2-activiti-tasklist', 'node_modules/ng2-activiti-tasklist/src');
         }
@@ -42,4 +47,16 @@ export class ActivitiTaskHeader {
     public hasAssignee(): boolean {
         return (this.taskDetails && this.taskDetails.assignee) ? true : false;
     }
+
+    isAssignedToMe(): boolean {
+        return this.taskDetails.assignee ? true : false;
+    }
+
+    claimTask(taskId: string) {
+        this.activitiTaskService.claimTask(taskId).subscribe(
+            (res: any) => {
+                console.log('Task claimed');
+                this.claim.emit(taskId);
+            });
+    }
 }
diff --git a/ng2-components/ng2-activiti-tasklist/src/i18n/en.json b/ng2-components/ng2-activiti-tasklist/src/i18n/en.json
index f01705e4a9..5630564c2c 100644
--- a/ng2-components/ng2-activiti-tasklist/src/i18n/en.json
+++ b/ng2-components/ng2-activiti-tasklist/src/i18n/en.json
@@ -14,10 +14,12 @@
             "CHECKLIST": "Checklist"
         },
         "BUTTON": {
-            "COMPLETE": "Complete"
+            "COMPLETE": "Complete",
+            "CLAIM": "Claim"
         },
         "MESSAGES": {
-            "NONE": "No task details found."
+            "NONE": "No task details found.",
+            "CLAIM": "To work on this task, you need to claim it first. You can do that by pressing the Claim button above."
         },
         "FORM": {
             "NONE": "No form."
diff --git a/ng2-components/ng2-activiti-tasklist/src/i18n/it.json b/ng2-components/ng2-activiti-tasklist/src/i18n/it.json
index f75fe405d4..8d2e557e10 100644
--- a/ng2-components/ng2-activiti-tasklist/src/i18n/it.json
+++ b/ng2-components/ng2-activiti-tasklist/src/i18n/it.json
@@ -13,8 +13,13 @@
             "COMMENTS": "Commenti",
             "CHECKLIST": "Checklist"
         },
+        "BUTTON": {
+            "COMPLETE": "Completa",
+            "CLAIM": "Richiedi"
+        },
         "MESSAGES": {
-            "NONE": "Nessun dettaglio task trovato."
+            "NONE": "Nessun dettaglio task trovato.",
+            "CLAIM": "Per lavorare con questo task, hai bisogno di richiederlo prima. Per richiedere il task basta premere il tasto Richiedi"
         },
         "FORM": {
             "NONE": "Nessuna form."
diff --git a/ng2-components/ng2-activiti-tasklist/src/models/task-details.model.ts b/ng2-components/ng2-activiti-tasklist/src/models/task-details.model.ts
index 7407656360..83e5df4ee4 100644
--- a/ng2-components/ng2-activiti-tasklist/src/models/task-details.model.ts
+++ b/ng2-components/ng2-activiti-tasklist/src/models/task-details.model.ts
@@ -61,7 +61,7 @@ export class TaskDetailsModel {
         this.id = obj && obj.id || null;
         this.name = obj && obj.name || null;
         this.priority = obj && obj.priority;
-        this.assignee = new User(obj.assignee);
+        this.assignee = obj.assignee ? new User(obj.assignee) : null;
         this.adhocTaskCanBeReassigned = obj && obj.adhocTaskCanBeReassigned;
         this.category = obj && obj.category || null;
         this.created = obj && obj.created || null;
diff --git a/ng2-components/ng2-activiti-tasklist/src/services/activiti-tasklist.service.spec.ts b/ng2-components/ng2-activiti-tasklist/src/services/activiti-tasklist.service.spec.ts
index b42bdcef6d..c8c1540283 100644
--- a/ng2-components/ng2-activiti-tasklist/src/services/activiti-tasklist.service.spec.ts
+++ b/ng2-components/ng2-activiti-tasklist/src/services/activiti-tasklist.service.spec.ts
@@ -513,4 +513,20 @@ describe('ActivitiTaskListService', () => {
         });
     });
 
+    it('should claim a task', (done) => {
+        let taskId = '111';
+
+        service.claimTask(taskId).subscribe(
+            (res: any) => {
+                done();
+            }
+        );
+
+        jasmine.Ajax.requests.mostRecent().respondWith({
+            'status': 200,
+            contentType: 'application/json',
+            responseText: JSON.stringify({})
+        });
+    });
+
 });
diff --git a/ng2-components/ng2-activiti-tasklist/src/services/activiti-tasklist.service.ts b/ng2-components/ng2-activiti-tasklist/src/services/activiti-tasklist.service.ts
index 269a5122b8..562684b217 100644
--- a/ng2-components/ng2-activiti-tasklist/src/services/activiti-tasklist.service.ts
+++ b/ng2-components/ng2-activiti-tasklist/src/services/activiti-tasklist.service.ts
@@ -232,6 +232,15 @@ export class ActivitiTaskListService {
             }).catch(this.handleError);
     }
 
+    /**
+     * Claim a task
+     * @param id - taskId
+     */
+    claimTask(taskId: string): Observable<TaskDetailsModel> {
+        return Observable.fromPromise(this.apiService.getInstance().activiti.taskApi.claimTask(taskId))
+            .catch(this.handleError);
+    }
+
     private callApiTasksFiltered(requestNode: TaskQueryRequestRepresentationModel) {
         return this.apiService.getInstance().activiti.taskApi.listTasks(requestNode);
     }