diff --git a/packages/patternfly-4/react-table/src/components/Table/Table.test.tsx b/packages/patternfly-4/react-table/src/components/Table/Table.test.tsx
index 9a564951e39..3e76f09fbeb 100644
--- a/packages/patternfly-4/react-table/src/components/Table/Table.test.tsx
+++ b/packages/patternfly-4/react-table/src/components/Table/Table.test.tsx
@@ -10,9 +10,10 @@ import {
   headerCol,
   sortable,
   expandable,
-  compoundExpand
+  compoundExpand, IRow
 } from './index';
 import { rows, columns, actions } from '../../test-helpers/data-sets';
+import { ColumnsType } from './base';
 
 describe('Simple table', () => {
   test('caption', () => {
@@ -144,11 +145,11 @@ test('Collapsible table', () => {
 });
 
 test('Compound Expandable table', () => {
-  const compoundColumns: any = [
+  const compoundColumns: ColumnsType = [
     { title: 'col1', cell: { transforms: [compoundExpand] } },
     { title: 'col2', cell: { transforms: [compoundExpand] } }
   ];
-  const compoundRows: any = [
+  const compoundRows: IRow[] = [
     { isOpen: true, cells: [{ title: '1', props: { isOpen: true } }, { title: '2', props: { isOpen: false } }] },
     { parent: 0, compoundParent: 0, cells: [{ title: 'expanded', props: { colSpan: 2 } }] },
     { isOpen: false, cells: [{ title: '3', props: { isOpen: false } }, { title: '4', props: { isOpen: false } }] },
diff --git a/packages/patternfly-4/react-table/src/components/Table/Table.tsx b/packages/patternfly-4/react-table/src/components/Table/Table.tsx
index 8eb590c2178..094a44a9db1 100644
--- a/packages/patternfly-4/react-table/src/components/Table/Table.tsx
+++ b/packages/patternfly-4/react-table/src/components/Table/Table.tsx
@@ -90,7 +90,7 @@ export interface IExtra extends IExtraData {
 
 export type IFormatterValueType = formatterValueType & {
   title?: string | React.ReactNode;
-  props: any;
+  props?: any;
 };
 
 export interface ISortBy {
@@ -137,7 +137,7 @@ export interface IRowCell {
 }
 
 export interface IRow extends RowType {
-  cells: (React.ReactNode | IRowCell)[];
+  cells?: (React.ReactNode | IRowCell)[];
   isOpen?: boolean;
   parent?: number;
   props?: any;
diff --git a/packages/patternfly-4/react-table/src/components/Table/utils/__snapshots__/transformers.test.js.snap b/packages/patternfly-4/react-table/src/components/Table/utils/__snapshots__/transformers.test.js.snap
deleted file mode 100644
index 45663b7ed82..00000000000
--- a/packages/patternfly-4/react-table/src/components/Table/utils/__snapshots__/transformers.test.js.snap
+++ /dev/null
@@ -1,43 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`Transformer functions expandable with parent 1`] = `
-<Component>
-  <div
-    className="pf-c-table__expandable-row-content"
-  >
-    test
-  </div>
-</Component>
-`;
-
-exports[`Transformer functions selectable unselected 1`] = `
-Object {
-  "children": <Unknown
-    aria-labelledby="simple-node0"
-    checked={false}
-    name="checkrow0"
-    onSelect={[Function]}
-  >
-    
-  </Unknown>,
-  "className": "pf-c-table__check",
-  "component": "td",
-  "isVisible": true,
-  "scope": "",
-}
-`;
-
-exports[`Transformer functions sortable asc 1`] = `
-Object {
-  "aria-sort": "ascending",
-  "children": <Unknown
-    className="pf-c-button pf-m-plain"
-    isSortedBy={true}
-    onSort={[Function]}
-    sortDirection="asc"
-  >
-    
-  </Unknown>,
-  "className": "pf-c-table__sort pf-m-selected",
-}
-`;
diff --git a/packages/patternfly-4/react-table/src/components/Table/utils/formatters.js b/packages/patternfly-4/react-table/src/components/Table/utils/formatters.js
deleted file mode 100644
index dfa86691658..00000000000
--- a/packages/patternfly-4/react-table/src/components/Table/utils/formatters.js
+++ /dev/null
@@ -1 +0,0 @@
-export const defaultTitle = data => (data && data.hasOwnProperty('title') ? data.title : data);
diff --git a/packages/patternfly-4/react-table/src/components/Table/utils/formatters.test.js b/packages/patternfly-4/react-table/src/components/Table/utils/formatters.test.tsx
similarity index 100%
rename from packages/patternfly-4/react-table/src/components/Table/utils/formatters.test.js
rename to packages/patternfly-4/react-table/src/components/Table/utils/formatters.test.tsx
diff --git a/packages/patternfly-4/react-table/src/components/Table/utils/formatters.tsx b/packages/patternfly-4/react-table/src/components/Table/utils/formatters.tsx
new file mode 100644
index 00000000000..e47235b5605
--- /dev/null
+++ b/packages/patternfly-4/react-table/src/components/Table/utils/formatters.tsx
@@ -0,0 +1,3 @@
+import { IRowCell } from '../Table';
+
+export const defaultTitle = (data: IRowCell) => (data && data.hasOwnProperty('title') ? data.title : data);
diff --git a/packages/patternfly-4/react-table/src/components/Table/utils/transformers.test.js b/packages/patternfly-4/react-table/src/components/Table/utils/transformers.test.tsx
similarity index 90%
rename from packages/patternfly-4/react-table/src/components/Table/utils/transformers.test.js
rename to packages/patternfly-4/react-table/src/components/Table/utils/transformers.test.tsx
index a6bfad3fe4d..ba3834af394 100644
--- a/packages/patternfly-4/react-table/src/components/Table/utils/transformers.test.js
+++ b/packages/patternfly-4/react-table/src/components/Table/utils/transformers.test.tsx
@@ -14,8 +14,16 @@ import {
   textCenter
 } from './transformers';
 import { DropdownDirection, DropdownPosition } from '@patternfly/react-core';
+import { IActions, IActionsResolver, IAreActionsDisabled, IExtraData, IRowData } from '../Table';
 
-const testCellActions = ({ actions, actionResolver, areActionsDisabled, rowData, expectDisabled }) => {
+const testCellActions = (
+  { actions }: { actions: IActions },
+  { actionResolver }: { actionResolver: IActionsResolver },
+  { areActionsDisabled }: { areActionsDisabled: IAreActionsDisabled },
+  { rowData }: { rowData: IRowData },
+  { extraData }: { extraData: IExtraData },
+  { expectDisabled }: { expectDisabled: boolean }
+) => {
   const returnedData = cellActions(actions, actionResolver, areActionsDisabled)('', {
     rowIndex: 0,
     rowData,
@@ -28,7 +36,7 @@ const testCellActions = ({ actions, actionResolver, areActionsDisabled, rowData,
   });
 
   if (actionResolver) {
-    actions = actionResolver(rowData);
+    actions = actionResolver(rowData, extraData);
   }
 
   expect(returnedData).toMatchObject({ className: 'pf-c-table__action' });
@@ -135,7 +143,7 @@ describe('Transformer functions', () => {
         actions
       },
       {
-        actionResolver: () => null
+        actionResolver: () => null as any
       },
       {
         actionResolver: () => actions
@@ -165,7 +173,7 @@ describe('Transformer functions', () => {
     const widths = [10, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 'max'];
     widths.forEach(width =>
       test(`${width}`, () => {
-        expect(cellWidth(width)()).toEqual({ className: `pf-m-width-${width}` });
+        expect(cellWidth(width as string)()).toEqual({ className: `pf-m-width-${width}` });
       })
     );
   });
@@ -212,7 +220,7 @@ describe('Transformer functions', () => {
 
   describe('expandedRow', () => {
     test('with parent', () => {
-      const returned = expandedRow(5)(
+      const returned = expandedRow(String(5))(
         { title: 'test' },
         { rowIndex: 2, rowData: { parent: 1 }, column: { extraParams: {} } }
       );
@@ -220,11 +228,11 @@ describe('Transformer functions', () => {
     });
 
     test('no parent', () => {
-      expect(expandedRow(5)({ title: 'test' }, { rowData: {}, column: { extraParams: {} } })).toBe(false);
+      expect(expandedRow(String(5))({ title: 'test' }, { rowData: {}, column: { extraParams: {} } })).toBe(false);
     });
 
     test('full width', () => {
-      const returned = expandedRow(5)(
+      const returned = expandedRow(String(5))(
         { title: 'test' },
         { rowIndex: 2, rowData: { parent: 1, fullWidth: true }, column: { extraParams: {} } }
       );
@@ -232,7 +240,7 @@ describe('Transformer functions', () => {
     });
 
     test('no padding', () => {
-      const returned = expandedRow(5)(
+      const returned = expandedRow(String(5))(
         { title: 'test' },
         { rowIndex: 2, rowData: { parent: 1, noPadding: true }, column: { extraParams: {} } }
       );
diff --git a/packages/patternfly-4/react-table/src/components/Table/utils/transformers.js b/packages/patternfly-4/react-table/src/components/Table/utils/transformers.tsx
similarity index 73%
rename from packages/patternfly-4/react-table/src/components/Table/utils/transformers.js
rename to packages/patternfly-4/react-table/src/components/Table/utils/transformers.tsx
index 3b898250b7b..d222d2fe29b 100644
--- a/packages/patternfly-4/react-table/src/components/Table/utils/transformers.js
+++ b/packages/patternfly-4/react-table/src/components/Table/utils/transformers.tsx
@@ -8,6 +8,8 @@ export { compoundExpand } from './decorators/compoundExpand';
 export { headerCol } from './decorators/headerCol';
 export { classNames, Visibility } from './decorators/classNames';
 
+import { IFormatterValueType, IExtra } from '../Table';
+
 export const emptyTD = () => ({
   scope: '',
   component: 'td'
@@ -17,14 +19,14 @@ export const scopeColTransformer = () => ({
   scope: 'col'
 });
 
-export const emptyCol = label => ({
+export const emptyCol = (label: IFormatterValueType) => ({
   ...(label ? {} : { scope: '' })
 });
 
-export const parentId = (_value, { rowData }) => ({
+export const parentId = (_value: IFormatterValueType, { rowData }: IExtra) => ({
   parentId: rowData.parent
 });
 
-export const mapProps = (_label, { property, rowData }) => ({
+export const mapProps = (_label: IFormatterValueType, { property, rowData }: IExtra) => ({
   ...(rowData[property] && rowData[property].props)
 });